railway RRB JE (CBT I + CBT II) Mock Test 2024 Soil Mechanics and Foundation Engineering Index Properties
Which of the following is the correct relation between void ratio(e) and porosity (n) of a soil sample?
1
\(\frac{1}{e} = \frac{n}{{1 - n}}\)
2
\(\frac{1}{n} = \frac{e}{{1 + e}}\)
3
\(\frac{1}{e} = \frac{1}{n} - 1\)
4
\(\frac{1}{n} = \frac{1}{e} - 1\)